I have been using it for about a year and even though I still route the edges of big baits, I no longer hand sand anything. I put about 10 psi in mine and use a drill press to spin it. The center of the drum will deflect as little or as much as I need to get a good rounded back on baits up to 1.5" thick. Small stuff as mentioned, I dont even rough I just hit both sides, then top and bottom and it is off to sealer. The center deflects more than the ends of the drum so you can either vary the amount of pressure or use the edges to get less radius. I saw a guy on TV making skateboard decks out of ash and he could get a perfect round edge with one pass on each side of the deck. I would be glad to throw up a picture but it may take me a while to get to it.
Jerk!